diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6294e7c994..95c36d29bc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,7 +16,7 @@ add_custom_target(run
 
 add_custom_target(grub-image
     COMMAND ${CMAKE_COMMAND} -E env "SERENITY_ROOT=${CMAKE_SOURCE_DIR}" ${CMAKE_SOURCE_DIR}/Meta/build-image-grub.sh
-    BYPRODUCTS ${CMAKE_BINARY_DIR}/_disk_image
+    BYPRODUCTS ${CMAKE_BINARY_DIR}/grub_disk_image
     USES_TERMINAL
 )
 
diff --git a/INSTALL.md b/INSTALL.md
index 07345f3e2a..6232b6a4eb 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -17,12 +17,12 @@ At present there is no real GPU support so don't expect OpenGL, Vulkan nor accel
 
 ## Creating a Serenity GRUB disk image
 
-Before creating a Serenity disk image, you need to build the OS as described in the [SerenityOS build instructions](https://github.com/SerenityOS/serenity/blob/master/Documentation/BuildInstructions.md). Follow those instructions up to and including running **make install**. After the OS has built, run **sudo make grub-image** to replace the qemu **_disk_image** file in the Build directory with one that has GRUB2 installed that can be booted on a real PC.
+Before creating a Serenity disk image, you need to build the OS as described in the [SerenityOS build instructions](https://github.com/SerenityOS/serenity/blob/master/Documentation/BuildInstructions.md). Follow those instructions up to and including running **make install**. After the OS has built, run **sudo make grub-image** to create a new file called **grub_disk_image** that has GRUB2 installed that can be booted on a real PC.
 
-The final step is copying **_disk_image** onto the disk you wish to boot Serenity off using a command such as:
+The final step is copying **grub_disk_image** onto the disk you wish to boot Serenity off using a command such as:
 
 ```
-$ sudo dd if=_disk_image of=/dev/sdx bs=8M
+$ sudo dd if=grub_disk_image of=/dev/sdx bs=8M
 ```
 
 Replace **/dev/sdx** with the target device. The **bs=8M** argument is optional but will speed up the data transfer.
diff --git a/Meta/build-image-grub.sh b/Meta/build-image-grub.sh
index 985323e4a9..019761dd9d 100755
--- a/Meta/build-image-grub.sh
+++ b/Meta/build-image-grub.sh
@@ -22,12 +22,12 @@ fi
 echo "using grub-install at ${grub}"
 
 echo "setting up disk image..."
-dd if=/dev/zero of=_disk_image bs=1M count="${DISK_SIZE:-800}" status=none || die "couldn't create disk image"
-chown "$SUDO_UID":"$SUDO_GID" _disk_image || die "couldn't adjust permissions on disk image"
+dd if=/dev/zero of=grub_disk_image bs=1M count="${DISK_SIZE:-800}" status=none || die "couldn't create disk image"
+chown "$SUDO_UID":"$SUDO_GID" grub_disk_image || die "couldn't adjust permissions on disk image"
 echo "done"
 
 printf "creating loopback device... "
-dev=$(losetup --find --partscan --show _disk_image)
+dev=$(losetup --find --partscan --show grub_disk_image)
 if [ -z "$dev" ]; then
     die "couldn't mount loopback device"
 fi